Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed30a3a851aaca25…

MALICIOUS

PDF

283.7 KB Created: 2022-03-11 05:54:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-07
MD5: 6435bfb46078848917ce4678e93abc86 SHA-1: d74805ca9831a72cd4c5450a838280a9890efb18 SHA-256: ed30a3a851aaca252ff5b9c06e04da0fbd21bb13013b71b62bf74fdd3e90a040
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing attempt. The primary heuristic identified an image lure linking to an SEO redirector, which is a common tactic for phishing pages. The document body and extracted URLs confirm the presence of numerous links, likely leading to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5139

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://lazav.co.za/XSRYdR1H?utm_term=equilibrio+de+nash+pdf PDF link annotation
    • https://habibitours.org/ckfinder/userfiles/files/pukufonuxibinar.pdfIn PDF document text
    • https://mysilo.com/upload/ckfinder/files/telukeremixejerabalodib.pdfIn PDF document text
    • http://tonyprins.nl/images/uploads/file/54962123591.pdfIn PDF document text
    • https://pezenasenchantee.fr/userfiles/file/33378711019.pdfIn PDF document text
    • https://rugerwafers.com/demo/ruger/beta/userfiles/files/gidiwigi.pdfIn PDF document text
    • http://ipsc-pv.cz/kcfinder/upload/files/23608576190.pdfIn PDF document text
    • https://marcuspietrek.de/MARCUS/files/file/midakuvidipupude.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/vevikufitituki.pdfIn PDF document text
    • http://wgadget.com/file_media/file_image/file/50534552978.pdfIn PDF document text
    • http://fusiongrup.ro/userfiles/file/57664419438.pdfIn PDF document text
    • https://angkalaris.com/contents/files/53727134148.pdfIn PDF document text
    • http://rent-lease-no1.com/userfiles/file/20220309161343.pdfIn PDF document text
    • http://djpress.pl/Image/files/7370311646.pdfIn PDF document text
    • http://flamefitnessstudio.com/cewit/images/file/sirimopinisivagupe.pdfIn PDF document text
    • http://rcchoir.nl/upload/files/79191276453.pdfIn PDF document text
    • http://ewtch.com/upload/files/zedovekemid.pdfIn PDF document text
    • https://www.miroku-jp.com/system/js/kcfinder/upload/files/xininadoga.pdfIn PDF document text
    • https://www.oabrn.org.br/2017/_ups/files/files/bulutifenojojepuril.pdfIn PDF document text
    • http://studiotecnicoligioni.com/userfiles/files/44312591181.pdfIn PDF document text
    • http://xn----9sbbnbtte4cyg.xn--p1ai/ckfinder/userfiles/files/terofomif.pdfIn PDF document text
    • http://predit.ru/admin/ckfinder/userfiles/files/mijemisirevakaga.pdfIn PDF document text
    • http://www.firstpages.eu/app/webroot/files/userfiles/files/76577708782.pdfIn PDF document text
    • http://lotusromeo.fr/app/webroot/files/userfiles/files/19551400855.pdfIn PDF document text
    • https://merten-rozetki.su/kcfinder/upload/files/pizivukekaxokimekix.pdfIn PDF document text
    • http://52963566.com/upload/file/202203032052113738.pdfIn PDF document text
    • http://cablexconsulting.com/Upload/file/dugobifagabopoxewepixar.pdfIn PDF document text
    • http://irk-yoga.ru/upload/files/witelojilitotum.pdfIn PDF document text
    • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161fd41b7e78a4---medoromufululer.pdfIn PDF document text
    • http://stihoplet.by/upload/editor/files/34466465878.pdfIn PDF document text
    • http://creaorganization.com/depo/sayfaresim/file/19751602468.pdfIn PDF document text
    • http://clubselectionvoyages.net/images/file/tikolume.pdfIn PDF document text
    • http://svsteinfurth.de/radsportfiles/file/ruvibazixu.pdfIn PDF document text
    • http://dabaizhongxue.com/upload_fck/file/2022-2-16/20220216015441653553.pdfIn PDF document text
    • http://biopole-clermont.com/uploads/gestion_contenu/files/64599513543.pdfIn PDF document text
    • https://aymfly.com/aym_image/files/sotikigumibovisagilunija.pdfIn PDF document text
    • https://www.fukuyama-ramen.com/editors/kcfinder/upload/files/nobefisusasupap.pdfIn PDF document text
    • http://casaperugia.fr/userfiles/file/fupogoluzoselazekamuju.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_01_sfnt_off0003fa30.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_01_sfnt_off0003fa30.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003f224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F224 1696 bytes
SHA-256: 28c5bcedffb0f63c0f18ed07264126f7c833899b916de9a351f9850be7cb6bae
font_01_sfnt_off0003fa30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FA30 20640 bytes
SHA-256: 5eb238ef7f98e2d33b3bb39736aa3ddcf84f3b490787bd03e205e1cf7d635b8b
font_02_sfnt_off00042f29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42F29 10868 bytes
SHA-256: 1656598a247fba510c1cb5a3a6f3711c122a069569ffa284f01f355a94d1df8a
font_03_sfnt_off000447a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x447A7 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9